package cn.teduo;

public class dou18 {
    public static void main(String[] args) {
        cxf f = new cxz();
        new cxz();
    }
}
abstract class cxf{
    public cxf(){
        System.out.println("这是构造方法，父类");
    }

}
class cxz extends cxf{
    public cxz(){
        super();
        System.out.println("这是构造方法，子类");
    }
}
abstract class cxz1 extends cxf{

}
